Search
Results
-
Mapping of soil properties at high resolution in Switzerland using boosted geoadditive models
(2017)SoilHigh-resolution maps of soil properties are a prerequisite for assessing soil threats and soil functions and for fostering the sustainable use of soil resources. For many regions in the world, accurate maps of soil properties are missing, but often sparsely sampled (legacy) soil data are available. Soil property data (response) can then be related by digital soil mapping (DSM) to spatially exhaustive environmental data that describe ...Journal Article -
Multi-parametric cell profiling with a CMOS quad-modality cellular interfacing array for label-free fully automated drug screening
(2018)Lab on a ChipCells are complex systems with concurrent multi-physical responses, and cell physiological signals are often encoded with spatiotemporal dynamics and further coupled with multiple cellular activities. However, most existing electronic sensors are only single-modality and cannot capture multi-parametric cellular responses. In this paper, a 1024-pixel CMOS quad-modality cellular interfacing array that enables multi-parametric cell profiling ...Journal Article -
Changes in species composition in alpine snowbeds with climate change inferred from small-scale spatial patterns
(2008)Web EcologyAlpine snowbeds are characterised by a very short growing season. However, the length of the snow-free period is increasingly prolonged due to climate change, so that snowbeds become susceptible to invasions from neighbouring alpine meadow communities. We hypothesised that spatial distribution of species generated by plant interactions may indicate whether snowbed species will coexist with or will be out-competed by invading alpine species ...Journal Article -
Flexural wave-based soft attractor walls for trapping microparticles and cells
(2021)Lab on a ChipAcoustic manipulation of microparticles and cells, called acoustophoresis, inside microfluidic systems has significant potential in biomedical applications. In particular, using acoustic radiation force to push microscopic objects toward the wall surfaces has an important role in enhancing immunoassays, particle sensors, and recently microrobotics. In this paper, we report a flexural-wave based acoustofluidic system for trapping micron-sized ...Journal Article -
Fluid mechanics and rheology of the jumping spider body fluid
(2021)Soft MatterSpiders use their inner body fluid (“blood” or hemolymph) to drive hydraulic extension of their legs. In hydraulic systems, performance is highly dependent on the working fluid, which needs to be chosen according to the required operating speed and pressure. Here, we provide new insights into the fluid mechanics of spider locomotion. We present the three-dimensional structure of one of the crucial joints in spider hydraulic actuation, ...Journal Article -
The role of space charge in spin-resolved photoemission experiments
(2014)New Journal of PhysicsSpin-resolved photoemission is one of the most direct ways of measuring the magnetization of a ferromagnet. If all valence band electrons contribute, the measured average spin polarization is proportional to the magnetization. This is even the case if electronic excitations are present, and thus is of particular interest for studying the response of the magnetization to a pump laser pulse. Here, we demonstrate the feasibility of ultrafast ...Journal Article -
Scaling theory of electric-field-assisted tunnelling
(2014)Proceedings of the Royal Society A: Mathematical, Physical and Engineering SciencesRecent experiments report the current (I) versus voltage (V) characteristics of a tunnel junction consisting of a metallic tip placed at a distance d from a planar electrode, d varying over six orders of magnitude, from few nanometres to few millimetres. In the ‘electric-field-assisted’ (or ‘field emission’) regime, as opposed to the direct tunnelling regime used in conventional scanning tunnelling microscopy, all I–V curves are found to ...Journal Article -
Development of single-cell ICP-TOFMS to measure nanoplastics association with human cells
(2023)Environmental Science: NanoNanoplastics, solid polymer particles smaller than 1 μm, are suspected to be widely present in the environment, food and air, and may pose a potential threat to human health. Detecting nanoplastics in and associated with individual cells is crucial to understand their mechanisms of toxicity and potential harm. In this context, we developed a single-cell inductively coupled plasma time-of-flight mass spectrometry (sc-ICP-TOFMS) method for ...Journal Article -
A global water resources ensemble of hydrological models: the eartH2Observe Tier-1 dataset
(2017)Earth System Science DataThe dataset presented here consists of an ensemble of 10 global hydrological and land surface models for the period 1979–2012 using a reanalysis-based meteorological forcing dataset (0.5° resolution). The current dataset serves as a state of the art in current global hydrological modelling and as a benchmark for further improvements in the coming years. A signal-to-noise ratio analysis revealed low inter-model agreement over (i) snow-dominated ...Journal Article -
floodX: urban flash flood experiments monitored with conventional and alternative sensors
(2017)Earth System Science DataJournal Article